services:
  setup:
    image: docker.elastic.co/elasticsearch/elasticsearch:${STACK_VERSION}
    container_name: setup
    user: "0"
    volumes:
      - certs:/usr/share/elasticsearch/config/certs
    command: >
      bash -c '
       if [ x${ELASTIC_PASSWORD} == x ]; then
         echo "Set the ELASTIC_PASSWORD environment variable in the .env file";
         exit 1;
       elif [ x${KIBANA_PASSWORD} == x ]; then
         echo "Set the KIBANA_PASSWORD environment variable in the .env file";
         exit 1;
       fi;
       if [ ! -f config/certs/ca.zip ]; then
         echo "Creating CA";
         bin/elasticsearch-certutil ca --silent --pem -out config/certs/ca.zip;
         unzip config/certs/ca.zip -d config/certs;
       fi;
       if [ ! -f config/certs/certs.zip ]; then
         echo "Creating certs";
         echo -ne \
         "instances:\n"\
         "  - name: es01\n"\
         "    dns:\n"\
         "      - es01\n"\
         "      - localhost\n"\
         "    ip:\n"\
         "      - 127.0.0.1\n"\
         "  - name: kibana\n"\
         "    dns:\n"\
         "      - kibana\n"\
         "      - localhost\n"\
         "    ip:\n"\
         "      - 127.0.0.1\n"\
         > config/certs/instances.yml;

         bin/elasticsearch-certutil cert --silent --pem -out config/certs/certs.zip --in config/certs/instances.yml --ca-cert config/certs/ca/ca.crt --ca-key config/certs/ca/ca.key;
         unzip config/certs/certs.zip -d config/certs;
       fi;

       echo "Setting file permissions"
       chown -R root:root config/certs;
       find . -type d -exec chmod 750 \{\} \;;
       find . -type f -exec chmod 640 \{\} \;;

       echo "Waiting for Elasticsearch availability";
       until curl -s --cacert config/certs/ca/ca.crt https://es01:9200 | grep -q "missing authentication credentials"; do sleep 30; done;
       echo "Setting kibana_system password";
       until curl -s -X POST --cacert config/certs/ca/ca.crt -u "elastic:${ELASTIC_PASSWORD}" -H "Content-Type: application/json" https://es01:9200/_security/user/kibana_system/_password -d "{\"password\":\"${KIBANA_PASSWORD}\"}" | grep -q "^{}"; do sleep 10; done;
       echo "All done!";      
      '
    healthcheck:
     test: ["CMD-SHELL", "[ -f config/certs/es01/es01.crt ]"]
     interval: 1s
     timeout: 5s
     retries: 120
    networks:
      - app-network

  es01:
    image: docker.elastic.co/elasticsearch/elasticsearch:${STACK_VERSION}
    container_name: es01
    depends_on:
      setup:
        condition: service_healthy
    volumes:
      - certs:/usr/share/elasticsearch/config/certs:ro
      - pong_es_data_01:/usr/share/elasticsearch/data
    labels:
      co.elastic.logs/module: elasticsearch
    ports:
      - 9200:9200
    environment:
      - node.name=es01
      - cluster.name=${CLUSTER_NAME}
      - discovery.type=single-node
      - ELASTIC_PASSWORD=${ELASTIC_PASSWORD}
      - bootstrap.memory_lock=true
      - xpack.security.enabled=true
      - xpack.security.http.ssl.enabled=true
      - xpack.security.http.ssl.key=certs/es01/es01.key
      - xpack.security.http.ssl.certificate=certs/es01/es01.crt
      - xpack.security.http.ssl.certificate_authorities=certs/ca/ca.crt
      - xpack.security.transport.ssl.enabled=true
      - xpack.security.transport.ssl.key=certs/es01/es01.key
      - xpack.security.transport.ssl.certificate=certs/es01/es01.crt
      - xpack.security.transport.ssl.certificate_authorities=certs/ca/ca.crt
      - xpack.security.transport.ssl.verification_mode=certificate
      - xpack.license.self_generated.type=${LICENSE}
    healthcheck:
      test:
        [
         "CMD-SHELL",
         "curl -s --cacert config/certs/ca/ca.crt https://localhost:9200 | grep -q 'missing authentication credentials'",
        ]
      interval: 10s
      timeout: 10s
      retries: 120
    networks:
      - app-network
 

  kibana:
    image: docker.elastic.co/kibana/kibana:${STACK_VERSION}
    container_name: kibana
    labels:
      co.elastic.logs/module: kibana
    depends_on:
      es01:
        condition: service_healthy
    volumes:
      - certs:/usr/share/kibana/config/certs:ro
      - pong_kibana:/usr/share/kibana/data
    ports:
      - 5601:5601
    environment:
      - SERVERNAME=kibana
      - ELASTICSEARCH_HOSTS=https://es01:9200
      - ELASTICSEARCH_USERNAME=${KIBANA_USERNAME}
      - ELASTICSEARCH_PASSWORD=${KIBANA_PASSWORD}
      - ELASTICSEARCH_SSL_CERTIFICATEAUTHORITIES=config/certs/ca/ca.crt
      - XPACK_SECURITY_ENCRYPTIONKEY=${ENCRYPTION_KEY}
      - XPACK_ENCRYPTEDSAVEDOBJECTS_ENCRYPTIONKEY=${ENCRYPTION_KEY}
      - XPACK_REPORTING_ENCRYPTIONKEY=${ENCRYPTION_KEY}
    healthcheck:
      test: 
        [
        "CMD-SHELL", 
        "curl -s -I http://localhost:5601 | grep -q 'HTTP/1.1 302 Found'"
        ]
      interval: 10s
      timeout: 10s
      retries: 120
    networks:
      - app-network
 
  logstash01:
    image: docker.elastic.co/logstash/logstash:${STACK_VERSION}
    container_name: logstash01
    labels:
      co.elastic.logs/module: logstash 
    user: root 
    depends_on:
      es01:
        condition: service_healthy
      kibana:
        condition: service_healthy
    volumes:
      - certs:/usr/share/logstash/certs
      - pong_logstash_data01:/usr/share/logstash/data
      - ./config/logstash.conf:/usr/share/logstash/pipeline/logstash.conf:ro
      - pong_django_logs:/usr/share/logstash/logs
    ports:
      - "5044:5044/udp"
    command: logstash -f /usr/share/logstash/pipeline/logstash.conf
    environment:
      - NODE_NAME="logstash"
      - ELASTIC_HOSTS=https://es01:9200
      - ELASTIC_USER=${ELASTIC_USERNAME}
      - ELASTIC_PASSWORD=${ELASTIC_PASSWORD}
      - xpack.monitoring.enabled=false
    networks:
      - app-network

volumes:
  pong_django_logs:
    external: true
    name: shared_pong_django_logs
  pong_es_data_01:
  pong_kibana:
  pong_logstash_data01:
  certs:

networks:
  app-network:
    name: app-network
    external: true